The bookkeeping routine that keeps a home inspection business solvent

What to take away

Home inspection revenue arrives in bursts, and the books have to survive February. This routine covers business operations only, not individualized engineering, environmental, building-code, legal or tax advice.

Scope and duties depend on your jurisdiction, standard of practice and client agreement, so confirm current requirements with your state licensing board, your carrier and a licensed attorney or CPA.

The weekly close

The routine starts with separation. Open a business checking account, a business savings account for reserves, and one credit card used only for business. Novo, Bluevine and Mercury offer business checking with no monthly fee, so a second account costs nothing to hold. Commingling is the fastest way to lose a deduction at audit.

Every Friday, enter the week's deposits and card swipes, then match each one to a job number. An inspection is not revenue until a job number is attached to it. QuickBooks Online, Xero, Wave and FreshBooks all handle that entry; Wave is free for income and expense tracking and charges for payments and payroll.

Monday morning, reconcile the bank feed against your records. Anything unmatched after ten minutes gets flagged, not guessed at. The IRS recordkeeping guidance at What kind of records should I keep? is the baseline. Your system must clearly show income and expenses and support purchases, sales, payroll and assets.

Mileage goes in the same weekly entry, not into a shoebox for April. The IRS standard business rate was 70 cents a mile for 2025, and the figure is republished each December. MileIQ and Everlance log drives from a phone, and both offer free tiers with a monthly cap on tracked drives.

The close finishes by the tenth of the following month, which leaves room to review the numbers before a quarterly estimate is due.

For home inspection bookkeeping, NIST Small Business Quick-Start Guides supplies a checklist-driven way to pressure-test the same routine. CISA Cyber Guidance for Small Businesses covers account and payment controls. Those controls keep the books from being rewritten by someone else.

A job-cost sheet per inspection

Every inspection gets one row: the fee, the drive miles, the report time, and any add-on sold. That row is what tells you whether a $450 inspection in a rural county actually pays.

If your time is worth $75 an hour, two hours of driving and report writing takes $150 off that fee. Spectora, HomeGauge and ISN bundle job tracking with report writing, and subscriptions typically run $50 to $150 per inspector per month, depending on volume and add-ons.

At month end, divide total cost by inspections completed. That is your cost per inspection, and it moves when fuel, software or insurance moves. FreshBooks and Xero will turn the same row into an invoice with a payment link.

Accounts to keep open

The tax reserve and the equipment reserve are the two most owners skip. Fund both as a percentage of each invoice, so a slow month funds them less. That is the point.

A common split is 25% to 30% of each invoice to tax and about 5% to equipment. Your CPA sets the numbers for your entity and state.

Quarterly estimates go out on Form 1040-ES, due April 15, June 15, September 15 and January 15. Ally, Marcus by Goldman Sachs and similar savings accounts pay interest while the reserve waits.

Section 179 lets you deduct qualifying equipment in the year you buy it. That matters in a spring when a second moisture meter or a truck lands on the card.

Monthly numbers to review

Pull four numbers on the first business day: average fee per inspection, inspections per inspector per week, days sales outstanding, and cost per inspection. If average fee is flat while cost per inspection climbs, the fee schedule is the problem, not the marketing.

Days sales outstanding is the one that kills small inspection shops. If agents pay on the 45th day and payroll runs every two weeks, you are financing their float.

A card-on-file policy at booking drops the number. Stripe, Square and PayPal charge about 2.6% to 3.5% per transaction, so a $450 inspection gives up roughly $12 to $16 in processing.

For market-level context on where fees and volume sit, see best markets for a home inspection business in 2027. For the software that reports these numbers, see the home inspection software and KPI guide.

Spring strain: overtime, vehicle wear and certificates

Spring buying season pushes overtime and vehicle wear into the same eight weeks. Overtime is the cost line that flexes less than it looks, because inspectors are often salaried or on a per-job split.

Set a per-inspector cap on daily inspections and hold it. The fourth inspection of the day is where missed defects and disputed findings start. A disputed finding after closing costs more than the fee you earned.

Insurance and compliance costs rise with headcount and scope. Each new inspector, added service like mold or radon, and new state license brings a certificate that can lapse unnoticed. Review certificates monthly, not at renewal.

Common questions

What records does an inspector actually need to keep?

Invoices, bank and card statements, mileage logs and payroll records. Also insurance certificates and signed inspection agreements. The IRS guidance linked above sets the standard: records must clearly show income and expenses and support what you claim. Publication 583 covers the recordkeeping rules, and Publication 463 covers car expenses.

How much should go into reserves?

Pick a percentage of each invoice and hold it, rather than a fixed dollar figure. A CPA can tell you what your entity and state require. The routine works only if the transfer happens automatically on every deposit, and most business checking accounts let you schedule that rule.

What is the first sign the routine is failing?

Unmatched deposits older than a week, a job with no cost row, or a reserve account that has not moved in a month. Any of those means the close is drifting. The fix is to run the Friday entry before anything else that day.